This function is used to trim the DIE TOOL part defined in PREPARATION, and its interface is illustrated in Figure 6.2.63. Copy the existing binder as the REFERENCE BINDER, and move the temporary binder to a new position by setting OFFSET. Then use this reference binder to trim part, as illustrated in Figure 6.2.64.
Figure 6.2.63 Trim part
Figure 6.2.64 Trim process
DIE TRIM is mainly used for:
1. Design different draw depths for different stages during multi-stage drawings, as illustrated in Figure 6.2.65. The user must design a different draw depth for each drawing to form a part through multi-stage drawings. After trimming the part, a different draw depth will be created. Figure 6.2.66 shows the depth of the first drawing. Then add addendum between binder and part.
Figure 6.2.65 Multi-stage drawings
Figure 6.2.66 First draw depth
2. During binder design, create a binder illustrated in Figure 6.2.67. Firstly, draw the region above the binder, then form the unchanged region through the restrike stage, as illustrated in Figure 6.2.68. During drawing, since the part pierces the binder, the part portion below the binder must be trimmed in order to create addendum, as illustrated in Figure 6.2.69.
Figure 6.2.67 Cross Member
Figure 6.2.68 Before trim
Figure 6.2.69 After trim
l SOURCE PARTS
By default, the program adds all the DIE TOOL part defined in the DEFINE page to the initial part list as the initial part to be trimmed.
l ADD
Add parts to be trimmed to the list.
l REMOVE
Remove parts which will not be trimmed from the list.
l EXCLUDE
Exclude the convex region in part to avoid trimming. If the reference binder pierces the convex region inside part, the mesh of the convex region needs to be excluded. Therefore, the convex region will not be trimmed during trimming.
l OFFSET
Set the offset distance between reference binder and the original binder.
l APPLY
Click APPLY to trim the part in the initial part list using the reference binder.
l RESULT PART
After clicking APPLY, a new DIE TRIM part is generated and added to the trimmed part list, as illustrated in Figure 6.2.70. Add the mesh and surfaces above the reference binder to this layer, and use DIETRIM part to replace all the parts of DIE TOOL in DEFINE page.
Figure 6.2.70 Result part
NOTE: During trimming, the initial part is not trimmed, just copy the surfaces and mesh above the reference binder to DIE TRIM layer.
l REMOVE
Click this button to remove DIETRIM part, and reset the DIE TOOL part before trimming to DIE TOOL.